Locomotive structure



Dec. 5, 1933. H. M. PFLAGER LOCOMOTIVE STRUCTURE Filed March 28, 1932 2Sheets-Sheet l D611. 5, H, M. GER

LOCOMOT IVE STRUCTURE Filed March 28, 1932 2 Sheets-Sheet 2PatentedDec-s 1 UNITED "STATES PATENTcri icsff LocoMoTIvE' s'rn c'rUREHarry M. Pflager, St. Louis, MoQa ssignor to General Steel CastingsCorporation, Granite City 111., a. corporation of Delaware 7 ApplicationMarch 28,1932. Serial No.160l,465

15 Claims. (01. 105-44) The invention relates to railway rolling stockexhaust steam passageways 9 and longitudinaland consists in a novellocomotive under-frame Webs 10. i... and associated structure. v Theunderframe includes a main backbone It has been customary heretofore tomount the portion of box section (see Figure 6) including air brakeoperating cylinders at the rear of the sidewalls 11, bottom 'wall 12 andtop wall 13 0.

main steam cylinder saddle and in order to acand" this box sectionmerges with the r'ear por commodate these cylinders substantial spacestion of'the cylinder saddle; Supplementary side were necessary in theframing at the rear of the .members'indicated at l iare'utilizedtQfOllllth'jf saddle. In a familiar type of cast locomotive riverpedestals *15. A box shaped front deck bed, an underframe backbonemember. of box structure 16 extends forwardly'from the cylinder 65 crosssection, is utilized to providea strong rigid saddle and terminates inan 'end sillfl'l. "Walls I sructure and the usual cylinder arrangement18 extend upwardly from the deck and form sup-j f necessitated cuttingaway this backbone member" porting structure for the usual water; andair adjacent to the brake cylinders and the steam pump cylinders (notshown); Members 1118 are cylinder saddle where increased rigidity wasbraced by deep transverse webs 19and519u. 70 desirable. V Preferablyairbrake opei'atingcylinders Z'O'ar'e In locomotives having two-wheelfront engine cast integrally withthe front deck structure,'the trucks,the space between the front drivers and transverse web 19a havingopenings 21 for cylinthe cylinder saddle is so restricted that it isders 20. s

difdcult to'apply the brake cylinders and associ- A yoke 22 is attached.to each cylinder piston '15 ated gearing in the usual position. rod 23and links 24 extend along each side of The main object of the presentinvention is to the cylinder to the rear thereof wherethey are overcomethe disadvantages set forth above, and connected by a bar 25 to which apull rod 26 is this object is accomplished by locating the brakeattached. Pull rods 26 extend through suitable 25 cylinders in front ofthe cylinder saddle and exopenings provided in saddle walls 4 and 5 andso tending brake operating rods through ihe saddle. extend lengthwiseand interiorly of the backbone This arrangement makes possiblecontinuing the member to a point where they may be'connected backbonemember up to and preferably merging to brake levers 27} The brake shoesare applied with the rear portion of the saddle structure and to thedrivers 28 by means oflevers 27 and asso- 3 affords ample room formounting, operating, inciated gearing 29, I specting and repairing thebrake cylinder and. The Wheels 30 indicate a four-Wheel front associatedgearing. Preferably the structure detruck which tends to Space t ontdrivers-2 scribed is to be formed integrally by casting or from the mainsteam cylinder 1, and cylinder otherwise, and locating the air brakecylinders saddle, a greater distance than would be present 5 in front ofthe saddle is advantageous in such if a two-wheel engine truck isutilized, in which integral construciion as these parts are more accasethe wheels would be in front of the. steam cessible for machining,bushing, etc. cylinders and the driver's would be so close to In theaccompanying drawings illustrating a the saddle that it would bedifficult to locate a preferred embodiment of the invention brake cy ide at the real" 0f the dd e- 40 Figure 1 is a top view of onelongitudinal half It is not essential'to the invention that the of theforward portion of a locomotive bed with IOCOmOtiVG underflame b -p eCas d associated brake gearing. or thatvthe brakecylinder-becast'integral'with Figure 2 is a side View, a portion of theb d the front deck structure. Various other details being sectionedadjacent to the brake pull rod, illustrated and described may be variedwithout I 5 Figure 3 is a half front elevation of the strucd pa t fromthe i i Of the invention. I

ture shown in Figures 1 and 2. contemplate the exclusive. use. of thosefeatures Figures 4, 5 and 6 are vertical transverse secof the inventionw i come Within the scope tions taken on the corresponding section'linesof Of e Claims irrespective modifications in '7 Figures 1 and 2.details. I I

50 The main steam cylinders and their supply a is Claimed is; chambersare indicated at l and 2, respectively, 1. In a lo'comtive, a n teamcylinder sadand are shown as being cast integrally ,with the dle, and a.brake operating cylinder carried in cylinder carrying saddle whichincludes side front of said saddle. 1 walls 3, transverse walls 4 and 5,a lower wall 6, 2. In a locomotive, a main steam cylinder sad- 55 an uppWall a boiler Supporting e e 8, dle, a brake operating cylinder carriedin front v with and'a brake operating'cylinder locatedin .of saidsaddle, and brake lever operating rods extending from said brakecylinder through said saddle. t

t 3. In a locomotive, a front deckframing structure and a brake cylindercarried thereby.

- 4. A locomotive front deck structure having a brake cylinder bodyintegral therewith. V

5. In a locomotive bed, a main steam cylinder saddle, framing membersprojecting forwardly therefrom, and a brake cylinder body carried bysaid members, all of said parts comprising an' integral structure. t V

6. 'In a locomotive bed, a steam cylinder saddle, a backbone member ofbox section extending rearwardly of said saddle andmerging therefront ofsaid saddle. 1

7. In a locomotive bed, a cylinder saddleba backbone member extendingrearwardly of said saddle and merging therewith and elements in front ofsaid saddle for supporting'a brake oper-' ating cylinder.

' 8. In a locomotive, a bed a'sspecifiedin claim]. 6, and'brakeoperating gear extending from said,

brake cylinder through said saddle and member. 9 .As a new: article ofmanufacture, a locomotivefbed-integral structure comprising a saddle ior said deck with a piston rod projecting outwardly motive, a brakelever pull rod extending through said saddle and means connecting theforward end of said pull rod with the outer end of said piston rod. I

12. In a locomotive, a main steam cylinder saddle, a front deck, a brakecylinder carried on said deck, a piston rod projecting outwardly frorn'said cylinder towards the front end of the locomotive, a yoke on saidpiston rod, links at the sides of said cylinder connected to said yoke;a bar between said links at the rear of said cylinder,.. and a brakelever operating rod connected to said bar and extending through saidsaddle.

13. In a locomotive, a main steam cylinder saddle, a front deck,'upright longitudinal walls at the sides of said deck for mounting airand therefrom towards the front end of the 1000- I water pumps, atransverse web betwee'n and bracing said walls, there being an openingin said web, and a brake cylinder carried on said deck and projectingthrough saidopening.

14. In a locomotive as specified in claim 13, a

piston rod projecting from the end ofs'aid 'cylin- I :der in frontofjsaidtransverse web, abrake operating pull rod extending through'said'sad dle, and means extending through said web and i HARRY M. PFLAGER.

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